Device for receiving metal ingots being cut off in the course of continuous casting

ABSTRACT

A device for receiving metal ingots to be cut off in the course of continuous casting, comprising an attachment adapted to hold the ingot in a crate which is fitted with a hole in its bottom part sufficient for the passage of a dummy bar. The attachment may be made as projections overlapping partly the hole in the crate bottom and holding the ingot in place with the dummy bar being provided with longitudinal grooves into which the projections are introduced.

Unite States Molochnikov et a1.

atent m1 Jam-14,1975

[ DEVICE FOR RECEIVING METAL INGOTS BEING CUT OFF IN THE COURSE OFCONTINUOUS CASTING Inventors: Nikolai Vladimirovich Molochnikov,

prospekt Mira, 103, kv. 227; Vladimir Sergeevich Patrikeev, Belomorskayaulitsa, 8, kv. 58; Abram Khaimovich Charny, lzmailovsky bulvar, 46/30,kv. 6; Viktor Alexeevich Schepkin, Novogireevskaya, 49, kv. 54, all ofMoscow, USSR.

Filed: May 11, 1973 Appl. No.: 360,375

US. Cl. 214/1 QG, 22/57.2, 214/130 R Int. Cl. B65g 7/00 Field of Search214/1 Q, 1 P, 2.5, 6 H, 214/6 C, 1 QG, 130 R, DIG. 3 22/57.2

[56] References Cited UNITED STATES PATENTS 2,999,605 9/1961 DeJarnett214/2 S 12/1963 Hess et a1. 214/1 Q X 11/1970 Helms 214/6 H FOREIGNPATENTS OR APPLICATIONS 305,928 11/1968 Sweden 214/1 QG PrimaryExaminerFrank E. Werner Attorney, Agent, or Firm-Waters, Roditi,Schwartz & Nissen [57] ABSTRACT A device for receiving metal ingots tobe cut off in the course of continuous casting, comprising an attachmentadapted to hold the ingot in a crate which is fitted with a hole in itsbottom part sufficient for the passage of a dummy bar.

The attachment may be made as projections overlapping partly the hole inthe crate bottom and holding the ingot in place with the dummy bar beingprovided with longitudinal grooves into which the projections areintroduced.

1 Claim, 3 Drawing Figures or mi CUT OFF IN THE COURSE OF CONTINUOUSCASTING The present invention relates to devices for receiving metalingots being cut off in the course of continuous casting on continuouscasting machines.

To date the devices employed for receiving the metal ingots being cutoff during the continuous casting process comprise a crate travelling inguide rods with the aid of rope drives. The crates can swing about ahorizontal axis perpendicular to the longitudinal axis of the crate anddraw the cut-off ingot out to a roll table.

At the beginning of the casting process a dummy bar is introduced into amould from below by means of a gear adapted for traversing it invertical direction. The dummy bar interacts with the ingot and withdraws(pulls out) it from the, mould as it is formed.

The metal ingot being drawn out of the mould by a pulling stand is cutto pieces by a flame-cutting machine.

However, the devices comprising the crates with the rope drives arecumbersome and not dependable in service. In operation the ropes areliable to stretch and the device lacks accuracy. Moreover, the ropesrequire constant attention, lubrication and control which increasesoperating expenses.

The main object of the invention is to provide a device for receivingmetal ingots being cut off in the course of continuous casting, whichwould feature a longer life period.

Another important object of the invention is to enhance reliability ofoperation of the device.

Yet another, no less important, object of the invention is to ensure acompact design and easy attendance of the device.

Said and other objects are accomplished by the provision of a device forreceiving metal ingots being cut off in the course of continuouscasting, comprising a crate adapted to accommodate the cut off ingot andfurnished with a gear for turning it about a horizontal pivot which isperpendicular to the longitudinal axis of the crate, and with a gearadapted for vertical traverse of a dummy bar interacting with the ingot,wherein, according to the invention, the bottom portion of said crate isfitted with a hole sufficient for the passage of the dummy bar and withan attachment holding the ingot in place in the crate.

The thus made device features a longer life period.

It is expedient that the attachment holding the ingot in place in saidcrate be made as projections located on the internal side surface of thecrate and partly overlap FIG. 2 same device at the moment the dummy baris detached from the cutoff ingot;

FIG. 3 is a section Ill-[II of FIG. 1.

A device is intended for receiving metal ingots 1 (FIGS. 1 and 2) beingshaped in a mould of a continuous casting machine (not shown in thedrawings) and cut off by an apparatus 2 arranged after a pulling stand 3(in the direction of the production process indicated by arrow A). Thedevice comprises a crate 4 adapted to admit the cut-off ingot, to turnit in a direction shown by arrow B, draw it out onto a roll table 5 tobe conveyed in the direction indicated by arrow C.

The crate is furnished with a gear 6 adapted to turn it about ahorizontal pivot 7 arranged at a right angle to the longitudinal axis ofthe crate 4 disposed vertically.

The mould, the crate 4 and a dummy bar 8 are aligned axially with oneanother.

The dummy bar 8 is fitted with a gear 9 adapted to traverse it in avertical direction.

The lateral face of the dummy bar 8 is provided with longitudinalgrooves 10 (FIG. 3) located on the opposite sides of the dummy bar 8 toaccommodate projections 11 produced on the internal side surface of thecrate 4 and partly overlapping a hole in its bottom part. Theprojections are designed to hold the cut-off ingot l in the crate 4,whereas the dummy bar 8 having the grooves 10 is not retained by theprojections.

In another embodiment of the device the attachment adapted to hold thecut-offingot in place may represent a dummy bar without the groovespassing readily through the crate which has no bottom and in which theingot is held in place by a clamp built into the crate walls. In thiscase use may be made of a conventional dummy bar but a drive must beprovided to transfer clamp jaws.

The herein-proposed device operates in the following manner. v

The crate 4 for receiving the ingot 1 (FIG. 1) being cut off is placedwith the help of the gear 6 in a vertical position. Then the dummy bar 8is lifted by the gear 9, passed through the hole provided in the bottomportion of the crate 4 and introduced into a mould (not shown in thedrawing). As the ingot is being shaped, the dummy bar 8 is being loweredwith the stand 3 adapted to pull out the ingot 1 being in operation atthat. In drawing a part of the ingot of a specified size out of themould an apparatus 2 is actuated to cut off the ingot 1 being descended.The cut-off part of the ingot is held on the top end face of the dummybar 8.

The bottom part of the'ingot can be detached from I the dummy bar 8 byany of the known devices, such as,

ping the hole in its bottom part with the lateral face of the dummy barbeing provided with longitudinal grooves interacting with saidprojections so that the dummy bar is allowed to pass through the hole inthe crate bottom with the ingot being held in place in the crate.

The above-described device is compact, reliable in service andconvenient in attending.

The invention is further exemplified by a detailed description ofspecific embodiments thereof, to be had in conjunction with theaccompanying drawings, wherein:

FIG. 1 shows a device, according to the invention, at the moment theingot being cut off is lowered into a crate; a section by a longitudinalplane along its longitudinal axis;

an automatic gear coupling the dummy bar head with its casing.

The ingot 1 being lowered into the crate 4 rests against projections 11,the dummy bar 8 being readily drawn out of the crate 4.

Following that, the drive of the gear 6 (FIG. 2) is energized and tiltsthe crate 4 with the ingot 1 from a vertical to horizontal position,with the crate 4 being turned at that about the horizontal pivot 7, asindicated by arrow B, in a position shown by a dotted line. Then theingot is conveyed by the roll table 5 in a direction shown by arrow C.At this time the next ingot cut off by a flame-cutting machine isdescending from the mould into the crate 4 (FIG. I) which is returnedinto a vertical position to receive the ingot. The dummy bar 8 is thenintroduced into the crate 4 and lifted until it approaches the bottomend face of the ingot 1 being lowered, whereupon they are loweredconcurrently. The cut-off ingot 1 rests against the top face of thedummy bar 8 which places it on'the projections 11 (FIG. 3) provided onthe interior of the crate 4 (FIG. 2). The projections 11 do notinterfere with the travel of the dummy bar 8 due to the longitudinalgrooves providedv on its lateral face but hold the ingot l in the crate4. Each time, on completion of the cut, the dummy bar 8 lowers thecut-off ingot 1 into the crate 4 until it (the ingot) is retained by theprojections 11. The dummy bar 8, being detached from the ingot l atthat, descends below the crate 4, whereafter the latter is turned by thegear 6 about the pivot 7 to transfer the ingot onto the roll table 5,after which the crate 4 returns into its initial vertical position.

The dummy bar 8 being traversed together with the cut off ingot l, thelatter is lowered into the crate 4 without blows. Further on, theabove-described cycle 4 is reiterated.

We claim:

l. A device for receiving metal ingots cut off in the course ofcontinuous casting comprising: a crate adapted to receive the cut-offingot and fitted in its bottom part with a hole sufficient for thepassage of a dummy bar interacting with said ingot; a plurality of gearsadapted for turning said crate about a horizontal pivot perpendicular tothe longitunal axis of said crate; a plurality of gears for traversingsaid dummy bar in a vertical direction; and an attachment adapted tohold said ingot in said crate after said dummy bar has emerged from saidcrate, said attachment comprising projections provided on the internalside surfaces of said crate and overlapping partly the hole in itsbottom part, the lateral face of said dummy bar being fitted withlongitudinal grooves wherein said projections are

1. A device for receiving metal ingots cut off in the course ofcontinuous casting comprising: a crate adapted to receive the cut-offingot and fitted in its bottom part with a hole sufficient for thepassage of a dummy bar interacting with said ingot; a plurality of gearsadapted for turning said crate about a horizontal pivot perpendicular tothe longitunal axis of said crate; a plurality of gears for traversingsaid dummy bar in a vertical direction; and an attachment adapted tohold said ingot in said crate after said dummy bar has emerged from saidcrate, said attachment comprising projections provided on the internalside surfaces of said crate and overlapping partly the hole in itsbottom part, the lateral face of said dummy bar being fitted withlongitudinal grooves wherein said projections are introduced.